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Add 21/54 and 42/50

21/54 + 42/50 is 553/450.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 50 is 1350

    Next, find the equivalent fraction of both fractional numbers with denominator 1350
  2. For the 1st fraction, since 54 × 25 = 1350,
    21/54 = 21 × 25/54 × 25 = 525/1350
  3. Likewise, for the 2nd fraction, since 50 × 27 = 1350,
    42/50 = 42 × 27/50 × 27 = 1134/1350
  4. Add the two like fractions:
    525/1350 + 1134/1350 = 525 + 1134/1350 = 1659/1350
  5. 1659/1350 simplified gives 553/450
  6. So, 21/54 + 42/50 = 553/450
    In mixed form: 1103/450

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